SDR ASAA2013120796661

Service difficulty report · Controller · Boeing 737890

Difficulty date: December 7, 2013
Submitted: December 9, 2013
Operation: Air carrier
Aircraft: N590AS
Make and model: Boeing 737890
Aircraft serial: 35687
Aircraft time: 22,614 hours, 6,958 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Controller
Condition: Malfunctioned
Location: Cabin Temp
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ZONE TEMP FWD CABIN LIGHT ON RECALL, WOULD NOT RESET IAW QRH. ACFT GROUNDED. PERFORMED BITE TEST ON BOTH TEMP CONTROLLERS, ZONE TEMP CONTROLLER NR 1 SHOWED CONTROLLER FAULT STANDBY PACK RESET CONTROLLER FAULT CLEARED, RETESTED CONTROLLER, NO FAULTS NOTED.